Walt Martin was a sound mixer who worked with Clint Eastwood on 14 films and was Oscar nominated for Flags of our Fathers. He died on the 24th July after being admitted to hospital suffering from chest pains. Walt was 69.
Martin's most recent film was American Sniper, again directed by Clint Eastwood and starring Bradley Cooper. It is due for release in 2015. His last film, Jersey Boys is in UK cinemas now.
Martin's first film with Clint Eastwood was True Crime (1999) and continued through Space Cowboys (2000), Blood Work (2002), Mystic River (2003), Oscar winner Million Dollar Baby (2004), the Flags companion film Letters From Iwo Jima (2006), Changeling (2008), Gran Torino (2008), Invictus (2009), Hereafter (2010) and Trouble With the Curve (2012).
He recently worked on quality TV series such as Sons of Anarchy, Closer and Mad Men.
The type of vasculitis Walt suffered from has not been disclosed.